Data as of Nov 11, 2026
37.19.4.0/23
No anonymizer space · no proxy exits in 30 daysSIS Laboratory, LLC
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 37.19.4.0/24 since Aug 2022 | AS198354 | Business | SIS Laboratory, LLC | |
| 37.19.5.0/24 since Apr 2026 | AS198354 | Business | SIS Laboratory, LLC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 37.19.0.0/21 | 2,048 | RU-SISTELECOM-20111221 | SIS Laboratory, LLC (ORG-SLL18-RIPE) · RU | ALLOCATED PA | Dec 21, 2011 | public@ |
| └ 37.19.4.0/24 | 256 | SISLAB-GAMEINSIGHT | unknown | ASSIGNED PA | Jul 25, 2017 | public@ via RU-SISTELECOM-20111221 |
| └ 37.19.5.0/24 | 256 | SISLAB-WEBALTA-PA | unknown | ASSIGNED PA | Jul 25, 2017 | public@ via RU-SISTELECOM-20111221 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 37.19.0.0/21
- Prefix
- 37.19.0.0/21
- Announced by
- AS198354 SIS Laboratory, LLC
- Type
- Business
- Proxy exits
- 4
- RPKI
- No RPKI
- Netname
- RU-SISTELECOM-20111221
- Registrant
- SIS Laboratory, LLC
- RIR
- RIPE NCC
Origin network
AS198354
RU
- Name
- SIS Laboratory, LLC
- Type
- Education
- Registered
- Dec 21, 2011
- Domain
- sislab.ru
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 37.19.0.0/21
37.19.0.0/21
Routing history
- Pattern
- Stable
- First seen
- Apr 2013
- Current origin since
- May 2025 · 1.5 yr
- Origin networks
- 1
IRR
Route objects on 37.19.0.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS198354 | RIPE | SIS Laboratory's IPv4 Aggregate Route | RU-SISLAB-MNT | May 30, 2017 |
Whois
Registration for this announcement
- Range
- 37.
19. 0. 0/ 21 - Netname
- RU-SISTELECOM-20111221
- Registrant
- SIS Laboratory, LLC
- Registrant country
- RU
- Organization
- SIS Laboratory, LLC (ORG-SLL18-RIPE)
- Org country
- RU
- Type
- ALLOCATED PA
- Created
- Dec 21, 2011
- Updated
- May 29, 2018
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- RU
- Delegated
- Dec 21, 2011
- Status
- assigned
Report abuse
Abuse contact
- public@
sislab. ru - Name
- Abuse-C Role
- Handle
- AR16927-RIPE